Walmart Interview Questions 2026
Published July 22, 2026 · Updated July 22, 2026
1 real interview questions asked at Walmart. Covers Data Engineering / PySpark. Reported by engineers who went through the Walmart process.
1 questions
72 engineers asked
92 upvotes
Data Engineering / PySpark (1)
You need to join a 500GB transaction table with a 5MB lookup table (country codes). The join is taking 20 minutes. How do you fix it?
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Frequently asked questions
You need to join a 500GB transaction table with a 5MB lookup table (country codes). The join is taking 20 minutes. How do you fix it?
You need to join a 500GB transaction table with a 5MB lookup table (country codes). The join is taking 20 minutes. How do you fix it?